Dressing: Combine the sesame-soy dressing ingredients in a 2-cup jar; cover jar with a tight-fitting lid and shake well to dissolve the honey. Store covered in the refrigerator up to 3 weeks. Salad: Remove skin and bones from rotisserie chicken and pull into long shreds. Toss chicken in a large bowl with mango, cucumber, red onion, and salt. Add 1/2 cup of dressing and toss to lightly coat. Serve chicken salad over watercress or mixed greens. Garnish with lime wedges.